78487020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1609}}^1$

素因数の和:1895

約数の個数: 72

約数和(自身を含む): 239104320

約数和(自身を除く): 160617300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 271, 542, 813, 1084, 1355, 1609, 1626, 2439, 2710, 3218, 3252, 4065, 4827, 4878, 5420, 6436, 8045, 8130, 9654, 9756, 12195, 14481, 16090, 16260, 19308, 24135, 24390, 28962, 32180, 48270, 48780, 57924, 72405, 96540, 144810, 289620, 436039, 872078, 1308117, 1744156, 2180195, 2616234, 3924351, 4360390, 5232468, 6540585, 7848702, 8720780, 13081170, 15697404, 19621755, 26162340, 39243510, 78487020]

約数ペア:

[(1, 78487020), (2, 39243510), (3, 26162340), (4, 19621755), (5, 15697404), (6, 13081170), (9, 8720780), (10, 7848702), (12, 6540585), (15, 5232468), (18, 4360390), (20, 3924351), (30, 2616234), (36, 2180195), (45, 1744156), (60, 1308117), (90, 872078), (180, 436039), (271, 289620), (542, 144810), (813, 96540), (1084, 72405), (1355, 57924), (1609, 48780), (1626, 48270), (2439, 32180), (2710, 28962), (3218, 24390), (3252, 24135), (4065, 19308), (4827, 16260), (4878, 16090), (5420, 14481), (6436, 12195), (8045, 9756), (8130, 9654)]